1919982 has 16 divisors (see below), whose sum is σ = 3894912. Its totient is φ = 630840.

The previous prime is 1919959. The next prime is 1919987. The reversal of 1919982 is 2899191.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 1919982.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1919987) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1828 + ... + 2679.

It is an arithmetic number, because the mean of its divisors is an integer number (243432).

2^1919982 is an apocalyptic number.

1919982 is an abundant number, since it is smaller than the sum of its proper divisors (1974930).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1919982 is a wasteful number, since it uses less digits than its factorization.

1919982 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4583.

The product of its digits is 11664, while the sum is 39.

The square root of 1919982 is about 1385.6341508494. The cubic root of 1919982 is about 124.2889118329.

The spelling of 1919982 in words is "one million, nine hundred nineteen thousand, nine hundred eighty-two".